Colossus the Fire Dragon is a double-looping roller coaster by Anton Schwarzkopf that opened at Lagoon Amusement Park in Utah in 1983.DescriptionThe coaster sends riders 85ft high up the lift hill alongside Wicked roller coaster, then into a smooth 1/3 right turn. Riders get a glimpse of the Wild Mouse and the Spider roller coasters before heading into a fast, twisting plummet to the ground, then through two 65ft High-G inversions and two helix turns. The first helix turn is very large, arcing over the "bridge" or elevated part of the queue, then up and through the second loop. After that the train passes just over the station's roof, then down and around, turning diagonally between the two loops into the G-inducing helix back to the station. This helix is what some people call the 'slanted spiral' or the 'upward-downward helix,' because it turns downward, upward, then downward again at equal angles into a large turn that leads back to the station, giving the entire element a 'slanted' look.Unique aspectsIt is a one-of-a kind double looping Anton Schwarzkopf roller coaster for two reasons. There were two double looping Anton Schwarzkopf roller coasters in the USA until Laser at Dorney Park & Wildwater Kingdom closed at the end of 2008. Colossus the Fire Dragon is also unique because it has an extra curve in the helix. The coaster is located in front of Lagoon's 2007 ride, Wicked.